Steam-trap.



No. 663,433. Patented Dec. H, |900.

L. E. HACKETT.

STEAM TRAP.

(Application filed June 3, 1898*) VV/T/VESSES: #VVE/V70 lUNirnn STATESLEWIS E. HACKETT, OF JACKSON, MICHIGAN.

sTAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 663,433, dated December11, 1900.

Application led June 3, 1898. Serial No. 682,478. (No model.)

To all whom t may concern.:

Be it known that I, LEWIS E. IIACKETT, a citizen of the United States,residing at Jackson, in the county of Jackson and State of Michigan,have invented a new and useful Return Steam-Trap, of which the followingis a speeication.

My invention relates to improvements in steam-traps in which valves arearranged to automatically admit the drip from steamheating pipes,steam-condensers, tbc., and return it to the boiler; and the objects ofmy invention are simplicity, compactness, economy and durability ofconstruction, and certainty and effectiveness of action. I attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich- Figure l is a side elevation of my device with the nearer side ofthe inclosing steamdrip box removed by vertical section through the line:c in Figs. 2 and 3 and portions of the working parts broken away toshow construction and operation. Fig. 2 is an end view of the same withthe nearer end of the box removed by vertical section through the line xa: of Figs. l and 3. Fig. 3 is a plan View of the same with the top ofthe box removed by horizontal section through the line y y of Figs. land 2.

Similar letters refer to similar parts throughout the several views.

A A is a steam-drip box which is provided with a pipe B passing throughits bottom and is secured by a steam-tight joint. This pipe projectsupward in the box to near its top, as shown at B, and is provided with acock C, which controls the passage of steam from the boiler through saidpipe B B/ to the box A A. The cock C is also provided with a sideopening c2, which leads out of the box through the pipe D. The plug ofthe cock C is provided with an opening c, danking the main opening c,through the plug.

E is the lever by which the cock C is opened and closed.

F F' are antifriction-pulleys upon which the gravity-bar G operates, itsweight augmented by the ball G.

H I are carry-pins projecting from the side of the4 sprocket-wheel K,which is driven by the chain L from the sprocket-wheel M, which is inturn operated by the lever N,

(which is the oat-ste1n,) actuated by the oat O.

P is a pipe through which the drip from the heating-pipes enters thetrap and through which it is returned to the boiler, the checkvalves Q Ralternately opening and closing to direct it.

My device is connected with the heating apparatus thus: The steam-trapis set above the boiler and connected with it above the high-Water lineby the pipe B, and the drippipes of the radiators are connected to thepipe P, with the check-valve Q intermeshing. The retu rn-pipe is alsoconnected to the pipe P at one end, the other to the boiler, thecheck-valve R intervening.

The operation of my device is as follows: The exhaust steam and dripenter the steamtrap box at P. The steam-box being vented by the passageB' c c2 D, this being open, allows the drip-water to rise in the box,carrying the iloat O up toward the position marked at O', which revolvesthe sprocket-wheel M, and this by the sprocket-chain L revolves thesmaller sprocket-wheel K, bringing the carrypin I in contact with thegravity-lever G, carries it up until it passes a perpendicular positionsufficiently, when it drops over onto the friction-wheel F, bears itdown until the lever E assumes the position indicated by the dottedlines at E E2, and then the carrypins H and I will have changedlocations and the gravity-bar be as indicated by the dotted lines at G2.Then the cock C, which at the commencement of the operation closedcommunication with the boiler, will be open and the opening c' c2closed. The fullpressure of steam from the boiler will then enter thesteam-trap box through the pipe B B/ and counterbalance thesteam-pressure from the l1eating-pipes,which entered at P. The dripwaterwill then of its own weight gravitate down through the pipe P, close tothe checkvalve Q, and course through R, returning into the boiler, andwhen the trap is empty the oat has gravitated down, reversing the motionof the sprocketwheels until the carrypin H has reversed the gravity-barG to its original position at G G, and the operation is continued.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is-- IOO 1. A steam-trap comprising the boxing, aValved exhaust-pipe communicating therewith, a pipe connecting theboiler with said boxing, a three-way cock in said pipe, a ventpipecommunicating with said cock, a twoarmed lever for actuating the cock,sprocket- Wheels, a chain, a oat, and pins on one of the sprocket-wheelsfor moving the lever' iu either direction, depending upon the height ofWater in the boxing, substantially as described.

2. In a steam-trap, a boxing, an exhaustpipe, a Water-outlet pipe, avent, a three-way cock in the Water-outlet pipe, a lever for actuatingsaid cock, rollers journaled in the ends of said lever, a pair ofsprocket-wheels connected by a chain, a float for actuating thesprocket-wheels, and pins on one of the sprocket-Wheels for moving thelever for actuating the cock in either direction depend zo ing upon therising and falling of the iloat,sub stantially as described.

3. In a steam-trap, a boxing, an exhaust-` Witnesses GEO. SCHNEIDER,DEssIE SNYDER.

